Learn how to change frames using buttons, with two alomst identical, but differnt ways.

Flash 8 Pro, AS 1.0 or 2.0
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////////////////////////////////////////////////////////////////////Step 1:
Open Flash. Open a new Flash document. On the stage of Frame 1, of your timeline draw 2 shapes. A circle and a square.

Step 2:
Highlight the circle and convert it to a button.
To do so:
A) Select the circle, right click on it > Convert to Symbol, name
it "circle_btn" and make sure you select "Button".
or Select the circle, Modify > Convert to Symbol, name
it "circle_btn" and make sure you select "Button".

Step 5:
Now go to Frame 1, and we'll add the simple code so that when you click on the circle, it will bring us to frame 2.Tip: Make sure that you are entering the code onto the "circle_btn" and not the frame. To do so: Click on a blank spot on the stage, then select your circle. Now open the "Actions" panel and type

on(release){
gotoAndStop(2);
}

Step 6:
Click on frame 3 and in the properties tab where it says "<Frame Label>" type "squarepage". Then go to frame 1 and put this code in the actions panel of your square button

on(release){
gotoAndStop("squarepage");
}

YOUR DONE
That should do it, Press "Ctrl + Enter" to test it.

Also: I know it could have been explained much shorter, I just like to be thorough.